What primary protective barrier area is required for therapy units?

Grounded in the retrieved California Referenced Standards Code — click a citation to read the verbatim passage:

• CRSC § 1.11. High relevance — show source text

  The state agency does not adopt sections identified with the following symbol: The Office of the State Fire Marshal’s adoption of this chapter or individual sections is applicable to structures regulated by other state agencies pursuant to Section 1.11.

  2025 CALIFORNIA BUILDING CODE 31C-1

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  31C-2 2025 CALIFORNIA BUILDING CODE

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  31C [DPH] RADIATION

  SECTION 3101C—SCOPE

  For the purpose of this chapter, the following terms shall have the meaning indicated:

  PRIMARY PROTECTIVE BARRIER is a barrier to attenuate the useful beam.

  SECONDARY PROTECTIVE BARRIER is a barrier to attenuate stray radiation.

  STRAY RADIATION is radiation not serving any useful purpose, which includes leakage and scattered radiation.

  USEFUL BEAM is the radiation which passes through the window, aperture, cone or other collimating device of the tube housing.

  SECTION 3102C—RADIATION SHIELDING BARRIERS

  All radiation shielding barriers in rooms and enclosures housing machines shall meet the requirements of Section 12-31C-101, Chapter 12-31C, Part 12, California Referenced Standards Code. The Department of Health Services is the only agency that may grant a variance or exception to these standards.

  SECTION 3103C—MEDICAL RADIOGRAPHIC AND PHOTOFLUOROGRAPHIC INSTALLATIONS

  3103C.1 Operator station. The operator’s station at the control shall be behind a protective barrier either in a separate room, in a protected booth or behind a shield which will intercept the useful beam and any radiation which has been scattered only once.

  3103C.2 Patient observation and communication. Provision shall be made for the operator to observe and communicate with the patient without leaving the shielded position at the control panel. When an observation window is used, it must provide radiation atten- uation equal to that required in the surrounding barrier.

  SECTION 3104C—MEDICAL THERAPEUTIC X-RAY INSTALLATIONS

  3104C.1 General. All wall, floor and ceiling areas that can be struck by the useful beam, plus a border of 1 foot (305 mm), shall be provided with primary protective barriers.

  3104C.2 Equipment operating above 50 kVp. Equipment operating above 50 kVp shall conform with the following: 1. The control station shielding shall either be an integral part of the building or anchored to the building. 2. The control station shall be provided with a window having radiation attenuation equal to that required by the adjacent barrier, or a mirror system, or a closed-circuit television viewing screen. The patient area must be visible to the operator with- out having to leave the protected area during exposure.

• CRSC § 3103C.1 High relevance — show source text

  SECTION 3103C—MEDICAL RADIOGRAPHIC AND PHOTOFLUOROGRAPHIC INSTALLATIONS

  3103C.1 Operator station. The operator’s station at the control shall be behind a protective barrier either in a separate room, in a protected booth or behind a shield which will intercept the useful beam and any radiation which has been scattered only once.

  3103C.2 Patient observation and communication. Provision shall be made for the operator to observe and communicate with the patient without leaving the shielded position at the control panel. When an observation window is used, it must provide radiation atten- uation equal to that required in the surrounding barrier.

  SECTION 3104C—MEDICAL THERAPEUTIC X-RAY INSTALLATIONS

  3104C.1 General. All wall, floor and ceiling areas that can be struck by the useful beam, plus a border of 1 foot (305 mm), shall be provided with primary protective barriers.

  3104C.2 Equipment operating above 50 kVp. Equipment operating above 50 kVp shall conform with the following: 1. The control station shielding shall either be an integral part of the building or anchored to the building. 2. The control station shall be provided with a window having radiation attenuation equal to that required by the adjacent barrier, or a mirror system, or a closed-circuit television viewing screen. The patient area must be visible to the operator with- out having to leave the protected area during exposure.

  3104C.3 Equipment operating above 150 kVp. Equipment operating above 150 kVp shall conform to the following: 1. The treatment room shall be provided with interlocks so that when any door of the treatment room is opened, either the machine will shut off automatically or the radiation level within the room will be reduced to an average of not more than 2 milliroentgens per hour and a maximum of 10 milliroentgens per hour at a distance of one meter in any direction from the target. After such shutoff or reduction in output, it shall be possible to restore the machine to full operation only from the control panel. 2. The control station shall be within a protective booth or in an adjacent room.

  3104C.4 A minimum of one door shall be provided with an auxiliary means for being opened in case of power failure or mechanical breakdown, where large power-driven doors offer the only access to the room.

  3104C.5 A flashing red warning signal light energized only when the useful beam is on shall be located adjacent to the entrance(s) to a therapy room with equipment capable of operating above 500 kVp.

  2025 CALIFORNIA BUILDING CODE 31C-3

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  31C-4 2025 CALIFORNIA BUILDING CODE

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  CALIFORNIA BUILDING CODE – MATRIX ADOPTION TABLE

  CHAPTER 31D – FOOD ESTABLISHMENTS

  (Matrix Adoption Tables are nonregulatory, intended only as an aid to the code user. See Chapter 1 for state agency authority and building applications.)

• CRSC § 0.90 High relevance — show source text

  00|0.90|DR|DR|DR| |Minimum
  1× wood
  furringd|Minimum
  2× wood
  stud|No.10
  wood
  screw|1|24|4.00|0.90|DR|DR|DR|2.85|DR|DR|DR|DR| |Minimum
  1× wood
  furringd|Minimum
  2× wood
  stud|1/4″
  lag screw|11/2|12|4.00|2.65|1.90|1.50|0.90|4.00|1.65|1.05|0.80|DR| |Minimum
  1× wood
  furringd|Minimum
  2× wood
  stud|1/4″
  lag screw|11/2|16|4.00|1.95|1.25|0.95|0.50|4.00|1.10|0.65|DR|DR| |Minimum
  1× wood
  furringd|Minimum
  2× wood
  stud|1/4″
  lag screw|11/2|24|4.00|1.10|0.65|DR|DR|3.25|0.50|DR|DR|DR| |For SI: 1 inch = 25.4 mm, 1 pound per square foot = 0.0479 kPa, 1 pound per square inch = 6.895 kPa.
  DR = Design Required.
  o.c. = On Center.
  a. Wood framing and furring shall be Spruce-pine-fir or any wood species with a specific gravity of 0.42 or greater in accordance with AWC NDS.
  b. Nail fasteners shall comply with ASTM F1667, except nail length shall be permitted to exceed ASTM F1667 standard lengths.
  c. The thickness of wood structural panels complying with the specific gravity requirements of Note a shall be permitted to be included in satisfying the minimum required pene-
  tration into framing.
  d. Where the required cladding fastener penetration into wood material exceeds3/4 inch and is not more than 11/2 inches, a minimum 2× wood furring or an approved design shall
  be used.
  e. Foam sheathing shall have a minimum compressive strength of 15 psi in accordance with ASTM C578 or ASTM C1289.
  f. Furring shall be spaced not more than 24 inches on center, in a vertical or horizontal orientation. In a vertical orientation, furring shall be located over wall studs and attached
  with the required fastener spacing. In a horizontal orientation, the indicated 8-inch and 12-inch fastener spacing in furring shall be achieved by use of two fasteners into studs
  at 16 inches and 24 inches on center, respectively.
  g. Cladding weight is the maximum weight of cladding materials in pounds per square foot of wall area. The 3 psf category typically applies to panel and lap siding materials; the
  11 psf category typically applies to conventional three-coat stucco of7/8-inch thickness; and 15 psf to 25 psf categories typically apply to adhered masonry veneers.|For SI: 1 inch = 25.4 mm, 1 pound per square foot = 0.0479 kPa, 1 pound per square inch = 6.895 kPa.
  DR = Design Required.
  o.c. = On Center.
  a.

• CRSC § 12-72 High relevance — show source text

  (c) Frame, enclosure and metalware.

  1. Control units and combination signaling systems shall be installed in locked substantial cabinets or metalware enclosures and shall be of a type expressly designed for the service for which they are used. Control unit cabinets and combination signaling system metalware enclosures enclosing alarm signaling circuits shall be provided with integral key locks.
  2. Control unit cabinets and combination signaling system metalware enclosures shall be so formed and assembled that they will have the strength and rigidity necessary to resist the abuses to which they are liable to be subjected, without adversely

  110 2025 CALIFORNIA REFERENCED STANDARDS CODE

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  PROTECTIVE SIGNALING SYSTEMS

  affecting their performance, and without increasing fire hazard due to total or partial collapse with resulting reduction of spacings, loosening or displacement of parts, or other serious defects. 3. Electrical parts of a control unit or combination signaling system shall be so located or enclosed that suitable protection against accidental contact with uninsulated hazardous live parts will be provided. 4. Operating parts, such as gear mechanisms, relays and similar devices, shall be protected against fouling by dust, insects or by other material which might impair their operation, by means of individual protection or dust-tight cabinets. 5. The thickness of cast metal for an enclosure shall be as indicated in Table 12-72-1A; except that cast metal of lesser thickness may be used if upon investigation it is shown that it has the equivalent mechanical strength. 6. Sheet metal enclosures for a control unit or combination signaling system shall be investigated and listed by a nationally recognized testing laboratory for its intended purpose or use, or shall be not less than indicated in Table 12-72-1B. 7. An enclosure shall have suitable means for mounting, accessible without disassembling any operating part except removal of a completely assembled panel such as a relay panel. 8. An enclosure cover shall be hinged if it gives access to fuses or any other overload-protective device, the normal functioning of which requires renewal, or if it is necessary to open the cover in connection with the normal operation of the control unit or combination signaling system. 9. Enclosure covers accessible for service only may be unhinged if, upon investigation, they are found to be suitable for the purpose. Unhinged covers shall be securely held in place by screws or equivalent fastening devices requiring the use of a tool for its removal.

  10. Cabinets or compartments for housing of primary batteries shall be key locked with provisions for protection against moisture or movement. Metal cabinets shall be of approved design constructed of sheet iron or steel not less than No. 14 manufacturer’s standard gage.
  11. Compartments for storage batteries shall have a total volume not less than twice the volume occupied by the batteries. Ventilating openings shall be provided, and so located to permit dispersion of gas while the battery is being charged at the highest rate permitted by the means incorporated in the unit.
  12. The interior of the storage battery compartment shall be protected against detrimental action by the electrolyte. The compartment shall be so located or enclosed that the equipment of the signaling system will not be adversely affected by battery gases.
  13. Ventilating openings shall be screened with wire screening having wires of not less than No. 16 AWG, expanded metal mesh or perforated metal of not less than 0.042 inch (1 mm) in thickness. No opening in wire screening, metal mesh or perforated metal shall exceed [ 1] / 2 square inch (322 mm [2] ) in area.
• California Referenced Standards Code High relevance — show source text

  PG&E’s preferred PS arrangements are either: a) when the PS customer’s primary distribution line is underground (UG) and the POS is less than 500 feet from the property line, or b) when the PS customer’s primary distribution line is overhead (OH) and the protective device pole (if separate from the POS pole) is less than 50 feet from the property line.

  1. UG Conductor and POS < 500 Feet

  If the PS customer’s primary line is underground and the POS is 500 feet or less from the property line, refer to Figure 1 on Page 12 and Figure 2 on Page 13. The following requirements apply:

  A. The PS customer must provide a PG&E approved pad−mounted switchgear enclosure for PG&E’s revenue−metering equipment. See Section 12 on Page 13 for detailed revenue− metering requirements.

  B. The PS customer must install primary protection at the POS. This protection may consist of a circuit breaker with phase and ground relays or, depending on the customer’s load, fuses may suffice. If PG&E determines that fuses will not coordinate with PG&E’s source−side protection, then the customer must use a circuit breaker. See Section 8A on Page 6 and Section 8C on Page 7 for circuit breaker and fuse requirements.

  C. The PS customer must install conduit from the POS to PG&E’s primary distribution equipment location.

  D. PG&E will pull one continuous run of cable and connect to the customer’s POS termination facility, not to exceed 500 feet (subject to an acceptable number of bends in the conduit).

  2. OH Conductor

  If the PS customer’s primary line is overhead, then the first pole at the customer’s property line is the POS. Refer to Figure 3. The following requirements apply:

  A. PG&E will install pole−top revenue−metering on the first pole on the PS customer’s property. See Engineering Standard 058779 Pole−Top Primary Metering Installation, (12 or 21 kV Line) for pole−top revenue− metering requirements.

  B. The PS customer must install primary protection on the second pole on their property, not to exceed 50 feet from the revenue metering pole. This protection may consist of a recloser or, depending on the customer’s load, fuses may suffice. If PG&E determines that fuses will not coordinate with PG&E’s source−side protection, then the customer must use a recloser. See Section 8C on Page 7 for recloser requirements.

  C. The PS customer second pole and the equipment installed on it, must maintain a minimum clearance of 10 feet from the PG&E revenue metering pole and any equipment, crossarms, and wires installed on it.

  D. PG&E will interconnect its system with the customer’s system at the revenue−metering pole.

  Section 4 Non−Preferred PS Arrangement Proposals

  PS customers may propose a non−preferred PS arrangement. This typically occurs when the PS customer’s primary distribution line is UG and the proposed location for the primary switchgear is greater than 500 feet from the property line. PG&E will consider such proposals; however, non−preferred service arrangement proposals may take longer to

  094676 Page 2 of 16 Rev. #00: 3/25/2022

• CRSC § 1217.8.4 High relevance — show source text

  (2) Plastic tube/cable ties, typically nylon, fastened to anchors such as rebar or wire mesh.

  (3) Staples made of metal or plastic or combination thereof, without sharp edges that would harm tube, fastened to insulation or subfloor.

  (4) Plastic rails with integrated tube holders intended for the specific type of tube.

  (5) Insulation sheets with integrated knobs for holding the specific type of tube and intended for this application.

  (6) Other fasteners recommended by the manufacturer. 1217.8.4 Spacing of Tube Fasteners. The maximum spacing between tube fasteners within a concrete floor shall not exceed the spacing specified by the manufacturer or, in the absence of manufacturer’s specifications, 2.5 feet (762 mm). 1217.9 Joist Systems and Subfloors. Where tubing is installed below a subfloor, the tube spacing shall be in accordance with the system design and joist space limitations.

  Where tubing is installed above or in the subfloor, the tube spacing shall not exceed 12 inches (305 mm) center-tocenter for living areas.

  Where tubing is installed in the joist cavity, the cavity shall be insulated with not less than R-12 material below the heated space.

  An air space of not less than 1 inch (25.4 mm) and not more than 3 inches (76 mm) shall be maintained between the top of the insulation and the underside of the floor unless a conductive plate is installed in accordance with manufacturer’s instructions.

  Where tubing is installed in panels above or in the subfloor and not embedded in concrete, the floor assembly shall be insulated with not less than R-5 material below the tubing when installed over habitable space.

  1217.9.1 Tubing Fasteners. Tubing that is installed within joist spaces and subfloor panel systems shall be fastened according to manufacturer’s instructions. Unless prohibited by the manufacturer, tubing fasteners shall include the following:

  (1) Heat transfer panel systems made of wood, aluminum or other thermally conductive materials intended for this application and the specific type of tube.

  (2) Staples made of metal or plastic or combination thereof, without sharp edges that would harm tube. intended for this application and the specific type of tube fastened to subfloor.

  (3) Plastic rails with integrated tube holders intended for the specific type of tube.

  (4) Other fasteners recommended by the manufacturer. 1217.10 Wall and Ceiling Panels. Where radiant tubing is installed in the stud wall cavity or the ceiling joist cavity, the cavity shall be insulated with not less than R-12 material. The insulation shall be installed in such a manner as to prevent heating or cooling loss from the space intended to be controlled.

  An air space of not less than 1 inch (25.4 mm) and not more than 3 inches (76 mm) shall be maintained between the insulation and the interior surface of the panel unless a conductive plate is installed.

  1217.10.1 California Energy Code Pipe Insulation Requirements. See California Energy Code Sections 150.0(j)2 and 120.3(c) for pipe insulation requirements based on fluid temperature and pipe diameter – where California Energy Code Table 120.3-A-1 or Table 120.3- A-2 specifies insulation greater than R- 12, the higher value is required.

• CRSC § 8.2 High relevance — show source text

  2 ft**|Hvs ≤ 8.2 ft|8.2 ft <****Hvs ≤ 16.4 ft|8.2 ft <****Hvs ≤ 16.4 ft|16.4 ft <****Hvs|16.4 ft <****Hvs| |Vbz/Az ≤
  (CFM/ft2)|As/Al
  ≤ 0.5|As/Al
  > 0.5|As/Al
  ≤ 0.5|As/Al
  > 0.5|As/Al
  ≤ 0.5|As/Al
  > 0.5| |0.2|2.0|1.3|1.3|0.8|0.9|0.6| |0.4|4.0|2.6|2.5|1.6|1.8|1.2| |0.6|6.0|3.9|3.8|2.5|2.7|1.7| |0.8|8.0|5.2|5.0|3.3|3.6|2.3| |1.1|11.0|7.1|6.9|4.5|4.9|3.2|

  For SI unit: 1 cubic foot per minute = 0.0283 m [3] /min, 1 cubic foot per minute per square foot = 5.08 [(L/s)/m [2] ], 1 square foot = 0.0929 m [2], 1 foot = 304.8 mm,

  Where:

  Vbz = breathing zone outdoor airflow, per Table 402.1. Az = zone floor area, the net occupiable floor area of the ventilation zone. Hvs = vertical separation between the center of the top and bottom openings’ free operable area; in case of multiple horizontally spaced pairs of openings, use shortest distance encountered. As = openable area of smallest opening (top or bottom); in case of multiple horizontally spaced pairs of top-and-bottom openings, use aggregated areas. Al = openable area of largest opening (top or bottom); in case of multiple horizontally spaced pairs of top-and-bottom openings, use aggregated areas.

  • Volumetric airflow rates used to estimate required operable area are based on the following:

  • Dry-air density of 0.075 lbda/ft [3] (1.2 kgda/m [3] ) at a barometric pressure of 1 atm (101.3 kPa) and an air temperature of 70°F (21°C)

  • Temperature difference between indoors and outdoors of 1.8°F (1°C)

  • Gravity constant of 32.2 ft/s [2] (9.81m/s [2] )

  • Window discharge coefficient of 0.6

  ical ventilation systems shall include controls, manual or automatic, that enable the fan system to operate wherever the spaces served are occupied. The system shall be designed to maintain minimum outdoor airflow as required by Section 403.0 under any load conditions.

• CRSC § 71.4 High relevance — show source text

  reinforcement: verti-
  cal, four5/8″ rebars; horizontal,3/8″ ties at
  7″ pitch; cover: 11/2″.|71.4
  tons|2 hrs|||7|2, 7|2| |C-11-RC-20|11″|11″ square columns; gravel concrete (4530
  psi); reinforcement: vertical, four5/8″
  rebars; horizontal,3/8″ ties at 7″ pitch;
  cover: 11/2″ with1/2″ plaster.|58.8
  tons|2 hrs|||7|2, 3, 9|2| |C-11-RC-21|11″|11″ square columns; gravel concrete (3520
  psi); reinforcement: vertical, four5/8″
  rebars; horizontal,3/8″ ties at 7″ pitch;
  cover: 11/2″.|Vari-
  able|1 hr
  24 min|||7|1, 8|11/4| |C-11-RC-22|11″|11″ square columns; aggregate concrete
  (3710 psi); reinforcement: vertical, four5/8″
  rebars; horizontal,3/8″ ties at 7″ pitch;
  cover: 11/2″.|58.8
  tons|2 hrs|||7|2, 3,
  10|2| |C-11-RC-23|11″|11″ square columns; aggregate concrete
  (3190 psi); reinforcement: vertical, four5/8″
  rebars; horizontal,3/8″ ties at 7″ pitch;
  cover: 11/2″.|58.8
  tons|2 hrs|||7|2, 3,
  10|2| |C-11-RC-24|11″|11″ square columns; aggregate concrete
  (4860 psi); reinforcement: vertical, four
  5/8″ rebars; horizontal,3/8″ ties at 7″ pitch;
  cover: 11/2″.|86.1
  tons|1 hr
  20 min|||7|1|11/3| |C-11-RC-25|11″|11″ square columns; aggregate concrete
  (4850 psi); reinforcement: vertical, four 5/8″
  rebars; horizontal,3/8″ ties at 7″ pitch;
  cover: 11/2″.|58.8
  tons|1 hr
  59 min|||7|1|13/4| |C-11-RC-26|11″|11″ square columns; aggregate concrete
  (3834 psi); reinforcement: vertical, four 5/8″
  rebars; horizontal,5/16″ ties at 41/2″ pitch;
  cover: 11/2″.|71.4
  tons|53 min|||7|1|3/4|

  For SI: 1 inch = 25.4 mm, 1 pound per square inch = 0.00689 MPa, 1 ton = 8.896 kN.

• CRSC § 1.11. Medium relevance — show source text

  CALIFORNIA BUILDING CODE – MATRIX ADOPTION TABLE

  CHAPTER 31C – RADIATION

  (Matrix Adoption Tables are nonregulatory, intended only as an aid to the code user. See Chapter 1 for state agency authority and building applications.)

  Adopting agency	BSC	BSC- CG	SFM	HCD	Col6	Col7	DSA	Col9	Col10	OSHPD	Col12	Col13	Col14	Col15	Col16	Col17	BSCC	DPH	AGR	DWR	CEC	CA	SL	SLC
  Adopting agency	BSC	BSC- CG	SFM	1	2	1/AC	AC	SS	SS/CC	1	1R	2	3	4	5	6	6	6	6	6	6	6	6	6
  Adopt entire chapter																		X
  Adopt entire chapter as amended (amended sections listed below)
  Adopt only those sections that are listed below
  Chapter / Section

  The state agency does not adopt sections identified with the following symbol: The Office of the State Fire Marshal’s adoption of this chapter or individual sections is applicable to structures regulated by other state agencies pursuant to Section 1.11.

  2025 CALIFORNIA BUILDING CODE 31C-1

  on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

  31C-2 2025 CALIFORNIA BUILDING CODE

  on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

  31C [DPH] RADIATION

  SECTION 3101C—SCOPE

  For the purpose of this chapter, the following terms shall have the meaning indicated:

  PRIMARY PROTECTIVE BARRIER is a barrier to attenuate the useful beam.

  SECONDARY PROTECTIVE BARRIER is a barrier to attenuate stray radiation.

  STRAY RADIATION is radiation not serving any useful purpose, which includes leakage and scattered radiation.

  USEFUL BEAM is the radiation which passes through the window, aperture, cone or other collimating device of the tube housing.

  SECTION 3102C—RADIATION SHIELDING BARRIERS

  All radiation shielding barriers in rooms and enclosures housing machines shall meet the requirements of Section 12-31C-101, Chapter 12-31C, Part 12, California Referenced Standards Code. The Department of Health Services is the only agency that may grant a variance or exception to these standards.

  SECTION 3103C—MEDICAL RADIOGRAPHIC AND PHOTOFLUOROGRAPHIC INSTALLATIONS

• CRSC § 1228.14.2.18 Medium relevance — show source text

  1228.14.2.18 Grab bars. Grab bars in common patient toilets and bathing facilities shall be installed in accordance with Section 1228.4.18.

  SPECIAL PATIENT CARE ROOMS.

  1228.14.3 Airborne Infection Isolation (AII) room(s). There shall be at least one airborne infection isolation (AII) room provided for each 50 beds, and for each major fraction thereof. Airborne infection isolation rooms for pediatric/adolescent and forensic supple- mental service nursing units shall be calculated independently from, and shall not be shared with each other or any other psychiatric nursing unit. Refer to Section 1224.14.3 and the general construction requirements of Section 1228.4. A bedpan flushing attachment is not required.

  1228.14.4 Protective environment room(s). If provided, refer to Section 1224.14.4 and the general construction requirements of Section 1228.4.

  1228.14.5 Seclusion room(s). There shall be at least one seclusion room provided for each 24 licensed beds, and for each major frac- tion thereof. At least one seclusion room shall be provided. A seclusion room may be shared by psychiatric nursing units. Seclusion rooms for pediatric/adolescent and forensic supplemental service nursing units shall be calculated independently from, and shall not be shared with each other or any other psychiatric nursing unit. Refer to the general construction requirements of Section 1228.4.

  1228.14.6 Quiet room. A quiet room shall be provided in each psychiatric nursing unit for a patient who needs to be alone for a short period of time but does not require a seclusion room. Refer to Section 1228.4.4.1.5.

  1228.14.7 Visitor/consultation room(s ). Visitor/consultation rooms shall be provided at a room-to-bed ratio of one consultation room for each 12 psychiatric beds, or major fraction thereof with a minimum of one, in each psychiatric nursing unit. Additionally, the following requirements shall be met: 1. Visitor/consultation room(s) shall have a minimum clear floor area of 100 square feet (9.29 m [2] ). 2. The room(s) shall be designed for acoustical and visual privacy. Refer to Table 1224.4.19, Sound Transmission Limitations in Hospitals.

  1228.14.8 Conference room. A conference and treatment planning room shall be provided for use by the psychiatric nursing unit. 1228.14.9 Space for group therapy. An enclosed private space with a minimum clear floor area of at least 225 square feet (20.90 m [2] ) shall be available for group therapy activities.

  1228.15 Reserved.

  1228.16 Reserved.

  1228.17 Reserved.

  12-92 2025 CALIFORNIA BUILDING CODE

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  INTERIOR ENVIRONMENT

  1228.18 Reserved.

  1228.19 PHARMACEUTICAL SERVICE SPACE. Pharmaceutical service space shall comply with the provisions of Section 1224.19.

• CRSC § 1224.4.7.2 Medium relevance — show source text

  Not required for Primary Care, Chronic Dialysis, Rehabilitation or Psychology Clinics._|Station Types
  P = Patient Station, B = Bath Station, E = Staff Emergency, C = Code Call, M = Master, D = Duty
  1. Not required for Primary Care, Chronic Dialysis, Rehabilitation or Psychology Clinics.|Station Types
  P = Patient Station, B = Bath Station, E = Staff Emergency, C = Code Call, M = Master, D = Duty
  1. Not required for Primary Care, Chronic Dialysis, Rehabilitation or Psychology Clinics.|

  1224.4.7.2 Light traffic. Service corridors and hallways with anticipated light traffic volume for nonpatient use may be reduced to a width of 5 feet (1524 mm) if approved by the enforcing agency.

  Exception: Corridors and hallways in administrative and business areas may be reduced to a width of 44 inches (1118 mm).

  1224.4.7.3 Outpatient services. Outpatient clinics which contain facilities for outpatient use only, such as laboratory, x-ray, phys- ical therapy or occupational therapy, shall have a minimum corridor or hallway width of 5 feet (1524 mm). Outpatient departments caring for one or more nonambulatory outpatients shall have a minimum corridor or hallway width of 6 feet (1829 mm). Corridors serving gurney or stretcher traffic shall comply with minimum width requirements of Section 1020.3. Outpatient clinics and outpatient departments consisting only of waiting rooms, business offices, doctor’s offices and examining rooms, where there is no traffic through such area to other services or to exits from the building, shall have a minimum corridor or hallway width of 44 inches (1118 mm).

  1224.4.7.4 Handrails. Corridors for patient traffic in areas providing skilled nursing, intermediate care or rehabilitation services shall be furnished with a handrail on both sides at a height not less than 30 inches (762 mm) or greater than 36 inches (914 mm).

  1224.4.7.5 Connections. Corridor systems shall connect all patient rooms and basic services.

  Exception: Covered pedestrian walkways connecting separate buildings are permitted for ambulatory, psychiatric or chemical dependency patients.

  1224.4.7.6 Departmental boundaries. Department/service space areas shall be contiguous and include internal circulation to access each of the rooms/spaces associated with it, as identified under the specific Service Space requirements. Identifiable

  2025 CALIFORNIA BUILDING CODE 12-19

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  INTERIOR ENVIRONMENT

  spaces are required for each of the indicated functions for all service areas, including their support spaces. Where the words “room” or “offices” are used, a separate, enclosed space for the one named function is intended; otherwise, the described area may be specific space in another room or common area.

  Exceptions:

  1. Satellite radiology, laboratory, pharmacy and physical and occupational therapy space serving inpatients may be located in nursing units and inpatient treatment areas. 2. Rooms and functional areas specifically noted under the Service Space requirements that may be shared with other units and departments.

  1224.4.8 Doors and door openings.

• CRSC § 1.18 Medium relevance — show source text

  Test chamber. The test chamber consists of a sheet- metal cell 2 feet by 1 foot by 1 foot (609 mm by 305 mm by 305 mm), open at the top and on one long side. The chamber shall be located so that an ample supply of air is provided, but the sample is not subjected to drafts. The chamber may be placed in a hood, provided that the fan is turned off during the test and is allowed to run only between tests to remove fumes. 2. A ring stand with a suitable clamp is used for supporting the specimens. 3. Burner and mounting block. The test flame is to be obtained by means of a Tirrill burner having a nominal bore of [3] / 8 inch (9 mm). The tube length above the primary air inlets is to be approximately 4 inches (101 mm). The burner is to be adjusted so that, while the burner is in a vertical position, the overall height of the flame is 5 inches (127 mm) and the height of the inner blue cone is 1 [1] / 2 inches (38 mm). A mounting block is to be provided so that the burner may be positioned at an angle of 20 degrees from the vertical. 4. A stopwatch or clock. 5. Circulating-air oven.

  (e) Conditioning and mounting. The test samples are to be conditioned by placing them in a circulating-air oven maintained at a uniform temperature not less than 10°C higher than the maximum temperature of the material measured under normal operating conditions but not less than 70°C in any case. The samples are to remain in the oven for 7 days. Prior to test the samples are to be returned to room temperature. The test sample is to be mounted as intended in service in the test chamber. The test flame is to be applied at an angle of 20 degrees from the vertical to any portion of the interior of the enclosure judged as liable to be ignited by proximity to live or arcing parts, coils, wiring, etc. The test flame shall be applied to a different location on each of the three samples tested. The test flame is to be applied for 5 seconds and removed for 5 seconds. The operation is to be repeated until the specimen has been subjected to a total of five applications of the test flame.

  (f) Impact test. An appliance employing a thermoplastic enclosure shall withstand three 5 foot-pound impacts without exposure of live parts, impairment of the operation of the appliance or result in a shock hazard.

  Each of two units is to be mounted securely in a position of normal use on a surface representative of a typical installation. Three 5 foot-pound impacts are to be applied to each sample, each trial on a different section of the enclosure, by means of a 1.18 pound, 2inch (51 mm) diameter steel sphere swung through a pendulum arc from a sufficient height to apply 5 foot-pounds of energy.

  Following the impacts, the unit is to be examined for damage and checked for normal operation by being energized from a source of rated voltage and frequency. Cracking of the enclosure is acceptable if it does not impair normal operation, but is not acceptable if a dust or moisture tight enclosure is required.

  (g) Infrared analysis of plastics. The basic composition of a plastic material employed for the sole support of current carrying parts or an enclosure is to be by infrared analysis.